Floating cutter handle

Abstract

The utility model relates to the technical field of machining, in particular to a floating cutter handle which comprises a transmission rod, a first transition ring, a locking rod and a limiting sleeve, a first transmission kidney-shaped groove is formed in the front end of the transmission rod, a locking face is arranged at the side end of the transmission rod, and a first transmission pin and a second transmission kidney-shaped groove are arranged on the two sides of the first transition ring respectively. The first transmission pin is arranged in the first transmission kidney-shaped groove, a second transmission pin and a tool bit assembling cavity are arranged on the two sides of the locking rod correspondingly, and the second transmission pin of the locking rod is arranged in the second transmission kidney-shaped groove of the first transition ring in a sliding mode. The limiting sleeve is arranged on the outer side of the locking rod in a sleeving mode and fixed to the transmission rod. Due to the arrangement of the transmission rod, the first transition ring, the locking rod and the limiting sleeve, floating of the cutter is achieved, and meanwhile the connection stability between devices is guaranteed through the transmission mode of the clamping grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a floating tool handle. Background Art

[0002] In the field of machining, especially in the machining of high-precision and complex-shaped workpieces, the stability and adaptability of the tool are crucial. Although traditional rigid toolholders provide sufficient strength and durability, they often lack sufficient flexibility when facing changing cutting conditions, which may lead to reduced machining accuracy, increased surface roughness and shortened tool life.

[0003] To address these issues, floating toolholder technology was developed. The floating toolholder design allows the tool to float freely to a certain extent to adapt to the irregularities of the workpiece and changes in cutting forces, thereby improving machining quality and tool life. However, the connection between the existing floating toolholder and the tool end is not stable enough, resulting in reduced reliability under high-speed or high-load machining conditions. Utility Model Content

[0004] The utility model provides a floating tool handle to solve the problems of the prior art.

[0005] The purpose of the present utility model can be achieved through the following technical solutions: a floating tool handle, comprising: a transmission rod, a first transition ring, a locking rod and a limit sleeve, the front end of the transmission rod is provided with a first transmission waist groove and the side end is provided with a locking surface, the first transition ring is provided with a first transmission pin and a second transmission waist groove on both sides, the first transmission pin is provided in the first transmission waist groove, the two sides of the locking rod are provided with a second transmission pin and a cutter head assembly cavity, the second transmission pin of the locking rod is slidably provided in the second transmission waist groove of the first transition ring, and the limit sleeve is provided on the outside of the locking rod and fixed to the transmission rod.

[0006] As a further improvement, a plurality of first circular grooves are arranged around the first transition ring, and a first sliding ball is rolled in each group of the first circular grooves, one end of the first sliding ball is against the end face of the transmission rod, and the other end is against the end face of the locking rod.

[0007] As a further improvement, a limiting hole is provided through the transmission rod, and a limiting mechanism is provided in the limiting hole. The limiting mechanism includes a limiting screw threadedly connected to the limiting hole, a limiting slider slidingly provided in the limiting hole, and a limiting spring provided between the limiting screw and the limiting slider, and the end of the limiting slider away from the limiting screw is abutted against the side wall of the first transmission pin.

[0008] As a further improvement, a second guide ring is provided between the locking rod and the inner wall of the limiting sleeve, a second circular through groove is provided around the second guide ring, and a second sliding ball is rolled in the second circular through groove.

[0009] As a further improvement, the length of the second transmission waist groove is a, and the length of the second transmission pin is b, satisfying the quantitative relationship a>b.

[0010] As a further improvement, the diameter of the portion of the locking rod located inside the limiting sleeve is c, and the inner diameter of the limiting sleeve is d, satisfying the quantitative relationship: c <d。

[0011] As a further improvement, the direction of the first transmission waist-shaped groove is perpendicular to the direction of the second transmission waist-shaped groove.

[0012] As a further improvement, a support ring is provided between the second guide ring and the inner wall of the limiting sleeve.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The utility model is composed of a transmission rod, a first transition ring, a locking rod and a limiting sleeve. The locking surface of the transmission rod is used to lock with an external drive mechanism. A first transmission waist groove is provided at its front end, which cooperates with the second transmission pin of the first transition ring to realize power transmission. Second transmission waist grooves are also provided on both sides of the first transition ring, which slide with the second transmission pin of the locking rod to provide a floating function, allowing the tool holder to be fine-tuned during the processing to adapt to different cutting requirements. The tool head assembly cavity of the locking rod is used to install the tool head to ensure the stability of the connection between the tool holder and the tool head. The limiting sleeve is provided on the outside of the locking rod and fixed to the transmission rod to ensure the precise positioning of the locking rod on the transmission rod.

[0015] 2. The setting of the ball in the utility model effectively reduces the friction between the first transition ring and the locking rod during the floating process of the tool handle, reduces energy loss and wear, extends the service life of the tool handle, and reduces maintenance costs;

[0016] 3. During actual use of the present invention, the limit slider applies a forward extrusion force to the first transition ring under the action of the limit spring, so that the first transition ring and the locking rod are tightly fitted together, avoiding separation between the first transition ring and the locking rod during the operation of the equipment, thereby causing transmission problems. At the same time, the limit screw is threadedly connected in the limit hole, and the position of the limit screw can be adjusted according to actual process requirements, thereby realizing the adjustment of the elastic deformation range of the limit spring to meet different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a partial exploded view of the utility model;

[0020] Figure 4 This is a schematic diagram of the partial internal structure of the utility model;

[0021] Figure 5 For this utility model Figure 2 Enlarged view of part A in the middle.

[0022] In the figure, 1. transmission rod; 11. first transmission waist groove; 12. locking surface; 13. limiting hole; 2. first transition ring; 21. first transmission pin; 22. second transmission waist groove; 23. first circular through groove; 231. first sliding ball; 3. locking rod; 31. second transmission pin; 32. cutter head assembly cavity; 4. limiting sleeve; 5. limiting mechanism; 51. limiting screw; 52. limiting slider; 53. limiting spring; 6. second guide ring; 61. second circular through groove; 62. second sliding ball; 7. support ring. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0025] Below with reference to the embodiment and the attached Figures 1 to 5 , the technical solution of the utility model is further elaborated.

[0026] Example 1

[0027] A floating tool handle includes: a transmission rod 1, a first transition ring 2, a locking rod 3 and a limit sleeve 4, the front end of the transmission rod 1 is provided with a first transmission waist groove 11 and the side end is provided with a locking surface 12, the first transition ring 2 is provided with a first transmission pin 21 and a second transmission waist groove 22 on both sides, the first transmission pin 21 is provided in the first transmission waist groove 11, the two sides of the locking rod 3 are provided with a second transmission pin 31 and a cutter head assembly cavity 32, the second transmission pin 31 of the locking rod 3 is slidably provided in the second transmission waist groove 22 of the first transition ring 2, and the limit sleeve 4 is sleeved on the outside of the locking rod 3 and fixed to the transmission rod 1.

[0028] like Figures 1 to 5 As shown, the utility model consists of a transmission rod 1, a first transition ring 2, a locking rod 3 and a limit sleeve 4. The locking surface 12 of the transmission rod 1 is used to lock with an external driving mechanism. A first transmission waist groove 11 is provided at the front end thereof, which cooperates with the second transmission pin 21 of the first transition ring 2 to realize power transmission. Second transmission waist grooves 22 are also provided on both sides of the first transition ring 2, which slide with the second transmission pin 31 of the locking rod 3 to provide a floating function, allowing the tool handle to be fine-tuned during the processing process to adapt to different cutting requirements. The tool head assembly cavity 32 of the locking rod 3 is used to install the tool head to ensure the stability of the connection between the tool handle and the tool head. The limit sleeve 4 is sleeved on the outside of the locking rod 3 and fixed to the transmission rod 1 to ensure the precise positioning of the locking rod 3 on the transmission rod 1.

[0029] As a further preferred embodiment, a plurality of first circular through grooves 23 are arranged around the first transition ring 2, and a first sliding ball 231 is rolled in each group of the first circular through grooves 23, and one end of the first sliding ball 231 is against the end face of the transmission rod 1, and the other end is against the end face of the locking rod 3.

[0030] Specifically, the provision of the ball 231 effectively reduces the friction between the first transition ring 2 and the locking rod 3 during the floating process of the tool handle, reduces energy loss and wear, extends the service life of the tool handle, and reduces maintenance costs.

[0031] As a further preferred embodiment, a limiting hole 13 is provided through the transmission rod 1, and a limiting mechanism 5 is provided in the limiting hole 13. The limiting mechanism 5 includes a limiting screw 51 threadedly connected to the limiting hole 13, a limiting slider 52 slidingly provided in the limiting hole 13, and a limiting spring 53 provided between the limiting screw 51 and the limiting slider 52. The end of the limiting slider 52 away from the limiting screw 51 is against the side wall of the first transmission pin 21.

[0032] Specifically, such as Figure 2 and 4As shown, during actual use, the limiting slider 52 applies a forward extrusion force to the first transition ring 2 under the action of the limiting spring 53, so that the first transition ring 2 and the locking rod 3 are tightly fitted together, avoiding separation between the first transition ring 2 and the locking rod 3 during the operation of the equipment, thereby causing transmission problems. At the same time, the limiting screw 51 is threadedly connected in the limiting hole 13, and the position of the limiting screw 51 can be adjusted according to actual process requirements, thereby realizing the adjustment of the elastic deformation range of the limiting spring 53 to meet different usage requirements.

[0033] As a further preferred embodiment, a second guide ring 6 is arranged between the locking rod 3 and the inner wall of the limit sleeve 4, and a second circular through groove 61 is arranged around the second guide ring 6. A second sliding ball 62 is rolled in the second circular through groove 61. By setting the second guide ring 6, the friction of the equipment during the floating process is further reduced, the service life of the tool handle is extended, and the maintenance cost is reduced.

[0034] As a further preferred embodiment, the length of the second transmission waist groove 22 is a, and the length of the second transmission pin 31 is b, satisfying the quantitative relationship a>b.

[0035] As a further preferred embodiment, the diameter of the portion of the locking rod 3 located inside the limiting sleeve 4 is c, and the inner diameter of the limiting sleeve 4 is d, satisfying the quantitative relationship: c <d。

[0036] As a further preferred embodiment, the first transmission waist-shaped groove 11 is perpendicular to the second transmission waist-shaped groove 22 .

[0037] As a further preferred embodiment, a support ring 7 is provided between the second guide ring 6 and the inner wall of the limiting sleeve 4 .

[0038] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A floating tool handle, characterized in that: include: A transmission rod (1), a first transition ring (2), a locking rod (3) and a limiting sleeve (4), wherein the front end of the transmission rod (1) is provided with a first transmission waist groove (11) and the side end is provided with a locking surface (12), the first transition ring (2) is provided with a first transmission pin (21) and a second transmission waist groove (22) on both sides, the first transmission pin (21) is provided in the first transmission waist groove (11), the two sides of the locking rod (3) are provided with a second transmission pin (31) and a cutter head assembly cavity (32), the second transmission pin (31) of the locking rod (3) is slidably provided in the second transmission waist groove (22) of the first transition ring (2), and the limiting sleeve (4) is sleeved on the outside of the locking rod (3) and fixed to the transmission rod (1).

2. A floating tool handle according to claim 1, characterized in that: A plurality of first circular through grooves (23) are arranged around the first transition ring (2), and a first sliding ball (231) is rolled in each group of the first circular through grooves (23), one end of the first sliding ball (231) abuts against the end face of the transmission rod (1), and the other end abuts against the end face of the locking rod (3).

3. The floating tool handle according to claim 1, characterized in that: A limiting hole (13) is provided through the transmission rod (1), and a limiting mechanism (5) is provided in the limiting hole (13). The limiting mechanism (5) comprises a limiting screw (51) threadedly connected to the limiting hole (13), a limiting slider (52) slidably provided in the limiting hole (13), and a limiting spring (53) provided between the limiting screw (51) and the limiting slider (52). An end of the limiting slider (52) away from the limiting screw (51) abuts against a side wall of the first transmission pin (21).

4. The floating tool handle according to claim 1, characterized in that: A second guide ring (6) is provided between the locking rod (3) and the inner wall of the limiting sleeve (4), a second circular through groove (61) is provided around the second guide ring (6), and a second sliding ball (62) is rolled in the second circular through groove (61).

5. The floating tool handle according to claim 1, characterized in that: The length of the second transmission waist groove (22) is a, and the length of the second transmission pin (31) is b, satisfying the quantitative relationship a>b.

6. The floating tool handle according to claim 1, characterized in that: The diameter of the portion of the locking rod (3) located inside the limiting sleeve (4) is c, and the inner diameter of the limiting sleeve (4) is d, satisfying the quantitative relationship: c <d。 7. The floating tool handle according to claim 1, characterized in that: The first transmission waist-shaped groove (11) and the second transmission waist-shaped groove (22) are perpendicular to each other.

8. The floating tool handle according to claim 4, characterized in that: A support ring (7) is provided between the second guide ring (6) and the inner wall of the limiting sleeve (4).

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